Camel Cartilage Question On Garrison Keillor’s radio show last week, he mentioned his mother had arthroscopic knee surgery using material from camels that replaced her cartilage. Please advise who/where is doing this procedure and any other info you have about it. Answer April 10, 2007 By Alan Matsumoto, M.D. I have not heard of this. Maybe this is a Lake Webegone special procedure.